<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style type="text/css">
		p{
			width: 500px;
			height: 300px;
			border: 1px solid #000;
			margin: 0 auto;
			line-height: 300px;
			text-align: center;
			font-weight: 600;
		}
	</style>
</head>
<body>
	<p>对不起，登陆失败！</p>
</body>
</html>